If it is cooler where you are it wouldn't hurt to keep the engine plugged in while you figure this out. Did anything happen from yesterday to today? You change anything? How much fuel do you have in your tank? Like Deano says, are your glow plugs functioning? Basics: Fuel, air, & heat...

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'85 300SD 'Otto' new to us Sept. '07
'82 300SD 'Jurgen' (July '06 fan shaft broke, toasted rad, 3am in the morning 60km from home, walked 16km hitchhiking.... )
'70 SS Chevelle (finally back on my property, in the shop on stands)



"The thinking required to solve a problem cannot be the same thinking used to create it!"-Einstien